Home / 814,266.33-1,221,404.13-215,221.16

Finding the Fourth Proportional to 814,266.33, 1,221,404.13 and 215,221.16

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Solution

The fourth proportional to 814,266.33, 1,221,404.13 and 215,221.16 is: 322,832.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,266.33 : 1,221,404.13 = 215,221.16 : x
  2. Step 2: Convert to fraction form
    814,266.33/1,221,404.13 = 215,221.16/x
  3. Step 3: Cross multiply
    814,266.33x = 1,221,404.13 × 215,221.16
  4. Step 4: Simplify right side
    814,266.33x = 262,872,007,580.37
  5. Step 5: Solve for x
    x = 262,872,007,580.37/814,266.33
  6. Step 6: Final answer
    x = 322,832.96

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.